Is Mary really going to retire,or is she still not sure?
You'd better get ready early ,for we have to catch the early train.
改错:
What will he do if he spends all the money?
I left yesterday.
What will Smith buy for his wife if he wins a lot of money?
翻译成英文:
Does he know what you are doing now?他知道你现在正在干什么吗?